The Imperial Agents emerge from the shadows when heresy threatens to destabilize worlds, worshippers seek to summon demonic abysses, and alien corruption threatens the human sphere. Some are Inquisitors of the Holy Orders and their colorful agents, but this term also includes terrifying Assassins, brave Rogue Traders, fanatical priests of the Imperial faith, and other more specialized individuals. Some join more conventional Imperial armies to pursue their own goals or offer their resources in a significant battle. Regardless of purpose or nature, the Imperial agents are among the most secretive and inner servants of the Golden Throne.

The Codex: Imperial Agents delves deep into the murky roots of these hidden organizations, providing insights into their methods of warfare. This also includes the mystery of the Deathwatch of the Space Marines, who are detached to the Ordo Xenos, as well as other key units associated with various services, such as the Sisters of Battle, the Grey Knights, the Imperial Navy, the Adeptus, and more. You will find many dark and eerie artworks for inspiration, as well as beautiful galleries of painted miniatures. This sacred tome gives you all the rules you need to participate in the secret war for the heart of the Empire, whether it be Combat Patrol, narrative crusades, or competitive matches of Warhammer 40,000.